Hello, I bought a dell Ultra Wide monitor and since a while it will randomly goes blank for 1-2 seconds and comes back.  This happens a few time per day. It seems to trigger more often while my video game is lagging losing performance but it is not only during those times. All driver are updated, my HDMI cables are not that used or old. I just don't know why I have those issues. Anyone can help me to fix this?

My pc is an MSI GE76 RTX 3070 Ti.